Formation of the solar systems

outer planets

Jovian planets

Formation of the sun

The Sun and the rest of the solar system formed from a giant, rotating cloud of gas and dust called a solar nebula about 4.5 billion years ago. As the nebula collapsed because of its overwhelming gravity, it spun faster and flattened into a disk.

Nebula

is a large cloud of gas and dust spread out in an immense volume

What properties of our solar systems must formation theory explain?

1. patterns of motions of the large bodies 2. existence of two types of planet 3. existence of smaller bodies 4. notable exceptions to usual patterns

meteorites

A meteorite is a solid piece of debris from an object, such as a comet, asteroid, or meteoroid, that originates in outer space and survives its passage through the atmosphere to reach the surface of a planet or moon

5 properties that explains the nebular hypothesis

Atoms in your body Collapsing Clouds of Gas and Dust in Nebular Hypothesis. ... The Spinning Nebula Flattens. ... Condensation of Protosun and Protoplanets. ... The composition of the Sun, the two classes of planets, etc. explained by the nebula hypothesis

How did we arrive at a theory of solar system formation?

four major features needed to be notes explained. several reasonable hypotheses were explore including nebula hypotheses, close encounter hypothesis

inner planets

terrestrial planets

astronomy

the branch of science which deals with celestial objects, space, and the physical universe as a whole.

terrestrial planets

the inner planets; Mercury, Venus, Earth, Mars

Jovian Planets

the outer planets; Jupiter, Saturn, Uranus, Neptune